Multiwavelength Observations of GRB 110731A: GeV Emission From Onset to Afterglow

Ackermann, M.; Ajello, M.; Asano, K.; Baldini, L.; Barbiellini, G.; Baring, M. G.; Bastieri, D.; Bellazzini, R.; Blandford, R. D.; Bonamente, E.; Borgland, A. W.; Bottacini, E.; Bregeon, J.; Brigida, M.; Bruel, P.; Buehler, R.; Buson, S.; Caliandro, G. A.; Cameron, R. A.; Caraveo, P. A.; Cecchi, C.; Charles, E.; Chaves, R. C.  G.; Chekhtman, A.; Chiang, J.; Ciprini, S.; Claus, R.; Cohen-Tanugi, J.; Conrad, J.; Cutini, S.; D'Ammando, F.; de Angelis, A.; de Palma, F.; Dermer, C. D.; do Couto e Silva, E.; Drell, P. S.; Drlica-Wagner, A.; Favuzzi, C.; Fegan, S. J.; Focke, W. B.; Franckowiak, A.; Fukazawa, Y.; Fusco, P.; Gargano, F.; Gasparrini, D.; Gehrels, N.; Giglietto, N.; Giordano, F.; Giroletti, M.; Glanzman, T.; Godfrey, G.; Granot, J.; Greiner, J.; Grenier, I. A.; Grove, J. E.; Guiriec, S.; Hadasch, D.; Hanabata, Y.; Hayashida, M.; Hays, E.; Hughes, R. E.; Jackson, M. S.; Jogler, T.; Jóhannesson, G.; Johnson, A. S.; Knödlseder, J.; Kocevski, D.; Kuss, M.; Lande, J.; Larsson, S.; Latronico, L.; Longo, F.; Loparco, F.; Lovellette, M. N.; Lubrano, P.; Mazziotta, M. N.; McEnery, J. E.; Mehault, J.; Mészáros, P.; Michelson, P. F.; Mitthumsiri, W.; Mizuno, T.; Monte, C.; Monzani, M. E.; Moretti, E.; Morselli, A.; Moskalenko, I. V.; Murgia, S.; Naumann-Godo, M.; Norris, J. P.; Nuss, E.; Nymark, T.; Ohno, M.; Ohsugi, T.; Omodei, N.; Orienti, M.; Orlando, E.; Paneque, D.; Perkins, J. S.; Pesce-Rollins, M.; Piron, F.; Pivato, G.; Racusin, J. L.; Rainò, S.; Rando, R.; Razzano, M.; Razzaque, S.; Reimer, A.; Reimer, O.; Romoli, C.; Roth, M.; Ryde, F.; Sanchez, D. A.; Sgrò, C.; Siskind, E. J.; Sonbas, E.; Spinelli, P.; Stamatikos, M.; Takahashi, H.; Tanaka, T.; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Tinivella, M.; Tosti, G.; Troja, E.; Usher, T. L.; Vandenbroucke, J.; Vasileiou, V.; Vianello, G.; Vitale, V.; Waite, A. P.; Winer, B. L.; Wood, K. S.; Yang, Z.; Gruber, D.; Bhat, P. N.; Bissaldi, E.; Briggs, M. S.; Burgess, J. M.; Connaughton, V.; Foley, S.; Kippen, R. M.; Kouveliotou, C.; McBreen, S.; McGlynn, S.; Paciesas, W. S.; Pelassa, V.; Preece, R.; Rau, A.; van der Horst, A. J.; von Kienlin, A.; Kann, D. A.; Filgas, R.; Klose, S.; Krühler, T.; Fukui, A.; Sako, T.; Tristram, P. J.; Oates, S. R.; Ukwatta, T. N.; Littlejohns, O.

doi:10.1088/0004-637X/763/2/71

Title: Multiwavelength Observations of GRB 110731A: GeV Emission From Onset to Afterglow

Journal Article · Wed Jan 09 00:00:00 EST 2013 · The Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/763/2/71· OSTI ID:1356599

Ackermann, M.; Ajello, M.; Asano, K.; Baldini, L.; Barbiellini, G.; Baring, M. G.; Bastieri, D.; Bellazzini, R.; Blandford, R. D.; Bonamente, E.; Borgland, A. W.; Bottacini, E.; Bregeon, J.; Brigida, M.; Bruel, P.; Buehler, R.; Buson, S.; Caliandro, G. A.; Cameron, R. A.; Caraveo, P. A. more »

In this paper, we report on the multiwavelength observations of the bright, long gamma-ray burst GRB 110731A, by the Fermi and Swift observatories, and by the MOA and GROND optical telescopes. The analysis of the prompt phase reveals that GRB 110731A shares many features with bright Large Area Telescope bursts observed by Fermi during the first three years on-orbit: a light curve with short time variability across the whole energy range during the prompt phase, delayed onset of the emission above 100 MeV, extra power-law component and temporally extended high-energy emission. In addition, this is the first GRB for which simultaneous GeV, X-ray, and optical data are available over multiple epochs beginning just after the trigger time and extending for more than 800 s, allowing temporal and spectral analysis in different epochs that favor emission from the forward shock in a wind-type medium. Lastly, the observed temporally extended GeV emission is most likely part of the high-energy end of the afterglow emission. Both the single-zone pair transparency constraint for the prompt signal and the spectral and temporal analysis of the forward-shock afterglow emission independently lead to an estimate of the bulk Lorentz factor of the jet Γ ~ 500-550.

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Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: USDOE

Contributing Organization:: Fermi-LAT Collaboration

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1356599

Journal Information:: The Astrophysical Journal, Vol. 763, Issue 2; ISSN 0004-637X

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 64 works

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“SELF-ABSORBED” GeV LIGHT CURVES OF GAMMA-RAY BURST AFTERGLOWS Panaitescu, A.; Vestrand, W. T.; Woźniak, P. The Astrophysical Journal, Vol. 788, Issue 1 https://doi.org/10.1088/0004-637x/788/1/70	journal	May 2014
On the magnetization of gamma-ray burst blast waves Lemoine, M.; Li, Z.; Wang, X. -Y. Monthly Notices of the Royal Astronomical Society, Vol. 435, Issue 4 https://doi.org/10.1093/mnras/stt1494	journal	September 2013
Energies of GRB blast waves and prompt efficiencies as implied by modelling of X-ray and GeV afterglows Beniamini, Paz; Nava, Lara; Duran, Rodolfo Barniol Monthly Notices of the Royal Astronomical Society, Vol. 454, Issue 1 https://doi.org/10.1093/mnras/stv2033	journal	September 2015
High-Energy Emission from Gamma-Ray Bursts Daigne, Frederic International Journal of Modern Physics: Conference Series, Vol. 08 https://doi.org/10.1142/s2010194512004606	journal	January 2012
Unbiased Long-Term Monitoring at TeV Energies González, María; Dorner, Daniela; Bretz, Thomas Günther RWTH Aachen University https://doi.org/10.18154/rwth-2019-07013	text	January 2019
Theoretical Description of GRB 160625B with Wind-to-ISM Transition and Implications for a Magnetized Outflow Fraija, N.; Veres, P.; Zhang, B. B. The Astrophysical Journal, Vol. 848, Issue 1 https://doi.org/10.3847/1538-4357/aa8a72	journal	October 2017
Modeling the High-energy Emission in GRB 110721A and Implications on the Early Multiwavelength and Polarimetric Observations Fraija, N.; Lee, W. H.; Araya, M. The Astrophysical Journal, Vol. 848, Issue 2 https://doi.org/10.3847/1538-4357/aa8d65	journal	October 2017
The Origin of the Optical Flashes: The Case Study of GRB 080319B and GRB 130427A Fraija, N.; Veres, P. The Astrophysical Journal, Vol. 859, Issue 1 https://doi.org/10.3847/1538-4357/aabd79	journal	May 2018
The Bright and the Slow—GRBs 100724B and 160509A with High-energy Cutoffs at ≲100 MeV Vianello, G.; Gill, R.; Granot, J. The Astrophysical Journal, Vol. 864, Issue 2 https://doi.org/10.3847/1538-4357/aad6ea	journal	September 2018
The Environments of the Most Energetic Gamma-Ray Bursts Gompertz, B. P.; Fruchter, A. S.; Pe’er, A. The Astrophysical Journal, Vol. 866, Issue 2 https://doi.org/10.3847/1538-4357/aadba8	journal	October 2018
Closure Relations of Gamma-Ray Bursts in High Energy Emission Tak, Donggeun; Omodei, Nicola; Lucas Uhm, Z. The Astrophysical Journal, Vol. 883, Issue 2 https://doi.org/10.3847/1538-4357/ab3982	journal	September 2019
Origin for the Prompt Spectral Evolution Characteristics and High Energy Emission during the X-Ray Flare in GRB 180720B Duan, Ming-Ya; Wang, Xiang-Gao The Astrophysical Journal, Vol. 884, Issue 1 https://doi.org/10.3847/1538-4357/ab3c6e	journal	October 2019
Modeling the Observations of GRB 180720B: from Radio to Sub-TeV Gamma-Rays Fraija, N.; Dichiara, S.; Caligula do E. S. Pedreira, A. C. The Astrophysical Journal, Vol. 885, Issue 1 https://doi.org/10.3847/1538-4357/ab3e4b	journal	October 2019
Synchrotron Self-Compton as a Likely Mechanism of Photons beyond the Synchrotron Limit in GRB 190114C Fraija, N.; Duran, R. Barniol; Dichiara, S. The Astrophysical Journal, Vol. 883, Issue 2 https://doi.org/10.3847/1538-4357/ab3ec4	journal	October 2019
Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-energy Emission from Prompt to Afterglow Ajello, M.; Arimoto, M.; Axelsson, M. The Astrophysical Journal, Vol. 890, Issue 1 https://doi.org/10.3847/1538-4357/ab5b05	journal	February 2020
Analysis and Modeling of the Multi-wavelength Observations of the Luminous GRB 190114C Fraija, N.; Dichiara, S.; Pedreira, A. C. Caligula do E. S. The Astrophysical Journal, Vol. 879, Issue 2 https://doi.org/10.3847/2041-8213/ab2ae4	journal	July 2019
Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-Energy Emission from Prompt to Afterglow Ajello, M.; Arimoto, M.; Axelsson, M. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2020-04014	text	January 2020
Unbiased Long-Term Monitoring at TeV Energies González, María; Dorner, Daniela; Bretz, Thomas Galaxies, Vol. 7, Issue 2 https://doi.org/10.3390/galaxies7020051	journal	April 2019
On the magnetization of gamma-ray burst blast waves Lemoine, Martin; Li, Zhuo; Wang, Xiang-Yu arXiv https://doi.org/10.48550/arxiv.1305.3689	text	January 2013
"Self-absorbed" GeV light-curves of Gamma-Ray Burst afterglows Panaitescu, A.; Vestrand, W. T.; Wozniak, P. arXiv https://doi.org/10.48550/arxiv.1308.3197	text	January 2013
GRB 110731A: Early afterglow in stellar wind powered by a magnetized outflow Fraija, Nissim arXiv https://doi.org/10.48550/arxiv.1503.07449	text	January 2015
Energies of GRB blast waves and prompt efficiencies as implied by modeling of X-ray and GeV afterglows Beniamini, Paz; Nava, Lara; Duran, Rodolfo Barniol arXiv https://doi.org/10.48550/arxiv.1504.04833	text	January 2015
Modeling the early multiwavelength emission in GRB130427A Fraija, Nissim; Lee, William H.; Veres, Péter arXiv https://doi.org/10.48550/arxiv.1601.01264	text	January 2016
Theoretical Description Of GRB 160625B with Wind-to-ISM Transition and Implications for a Magnetized Outflow Fraija, N.; Veres, P.; Zhang, B. B. arXiv https://doi.org/10.48550/arxiv.1705.09311	text	January 2017
Modeling the high-energy emission in GRB 110721A and implications on the early multiwavelength and polarimetric observations Fraija, N.; Lee, W. H.; Araya, M. arXiv https://doi.org/10.48550/arxiv.1709.06263	text	January 2017
The origin of the optical flashes: The case study of GRB 080319B and GRB 130427A Fraija, N.; Veres, P. arXiv https://doi.org/10.48550/arxiv.1804.02449	text	January 2018
Modeling the observations of GRB 180720B: From radio to sub-TeV gamma-rays Fraija, N.; Dichiara, S.; Pedreira, A. C. Caligula do E. S. arXiv https://doi.org/10.48550/arxiv.1905.13572	text	January 2019
Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-Energy Emission from Prompt to Afterglow Ajello, M.; Arimoto, M.; Axelsson, M. arXiv https://doi.org/10.48550/arxiv.1909.10605	text	January 2019

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